Where is the syntax for "conditions" documented?

It seems this is key to the puzzle but no expression parser or syntax scanner apparent here…

https://github.com/frappe/frappe/blob/develop/frappe/\_\_init\_\_.py#L1597

Both webhook condition:

https://github.com/frappe/frappe/blob/develop/frappe/integrations/doctype/webhook/\_\_init\_\_.py#L65

And salary condition formula call safe_eval:

https://github.com/frappe/erpnext/blob/develop/erpnext/hr/doctype/salary_slip/salary_slip.py#L418

Now I recall this too Multiple conditions on Salary Structure with a single formula

Hope this helps

And oh yes for the sake of decorum please null the f- bombs Martin thanks!